It depends on the country.

For countries such as america and china, where they already have guns, yes it is important that they keep them. Otherwise if they got rid of them, the system of criminals in cities already are armed and there are weapons everywhere, and so these places would become harder to protect against criminals. However, for countries that do no allow armed officers currently, then is important they keep it that way because if they arm them with guns, the criminals will as a result also arm themselves with similar weapons, so that they can handle themselves around cops and not get 'outgunned.'